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MINERAL IDENTIFICATION PROJECT |
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Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | anthracite (coal) | 2.00 | none | conchoidal | opaque | none | 1.60 | glassy | black | black | microcrystalline | organic | Not a mineral, but it was in the box of rocks of my first geology class. Being from California, I didn't know what it was! |
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